After the link not working and control F not turning up a 'earth-curvature' link on the page, I physically scanned down until I found this near the bottom:
Has some simple experiments to do that they claim will prove the earth is a ball. Haven't tried any, but the sunset twice method sounds like it has possibilities.
After the link not working and control F not turning up a 'earth-curvature' link on the page, I physically scanned down until I found this near the bottom:
https://www.omnicalculator.com/physics/flat-vs-round-earth
Has some simple experiments to do that they claim will prove the earth is a ball. Haven't tried any, but the sunset twice method sounds like it has possibilities.